Mathematical formulas

Algebra

Subjects Home Search

Sections

1Numbers and algebraic properties
2Powers, exponents, and radicals
3Algebraic expressions
4Notable products and identities
5Factorization
6Rational expressions and partial fractions
7Equations
8Inequalities
9Systems of equations
10Functions
11Polynomials
12Exponentials and logarithms
13Complex numbers
14Sequences, finite series, and recurrences
15Vectors
16Matrices
17Determinants and inverses
18Vector spaces
19Linear transformations
20Eigenvalues and diagonalization
21Orthogonality and projections
22Least squares
23Matrix decompositions
24Matrix norms and conditioning
25Boolean algebra
26Modular arithmetic
27Algebraic structures
28Linear codes and error correction
29Relationship maps

Search formulas…

Language

Loading formula…

Mathematical formulas · API-served content · Subjects

About Reviews Contact

Home
Algebra
Numbers and algebraic properties
Identity elements

1. Numbers and algebraic properties

Identity elements

Level: fundamental

In 1. Numbers and algebraic properties

Formula

a+0=a;\quad a\cdot1=a

Tags

algebra
algebra formula
fundamentals
numbers properties

Detail

Zero is the additive identity and one is the multiplicative identity.

Found an error? Contact us.

Related formulas

Related
Additive and multiplicative inverses
$a+(-a)=0;\quad a\cdot\frac1a=1\;(a\ne0)$
Open formula Open in section